Bathtub drain plug



FIG. 1 is a perspective view of a bathtub drain plug showing my newdesign;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is an enlarged detail view of portion 9 of FIG. 2 .

The dash dot broken lines shown in the figures indicates cutoffboundaries for enlarged detail portion views and form no part of theclaim. The dashed broken lines depict portions of the bathtub drain plugthat form no part of the claim.

CLAIM The ornamental design for a bathtub drain plug, as shown anddescribed.